Tenda CX12L Wi-Fi Configuration Endpoint fast_setting_wifi_set form_fast_setting_wifi_set stack-based overflow
CVE-2026-11503
8.7HIGH
Key Information:
Badges
👾 Exploit Exists🟡 Public PoC
What is CVE-2026-11503?
A security vulnerability has been detected in Tenda CX12L 16.03.53.12. The affected element is the function form_fast_setting_wifi_set of the file /goform/fast_setting_wifi_set of the component Wi-Fi Configuration Endpoint. Such manipulation of the argument ssid leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly and may be used.
Affected Version(s)
CX12L 16.03.53.12
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.
References
CVSS V4
Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None
Timeline
- 🟡
Public PoC available
- 👾
Exploit known to exist
Vulnerability published
Vulnerability Reserved
Credit
moist (VulDB User)